How to judge the quality of the wire according to the insulation layer of the wire

There are many varieties and standards of electric wires on the market, coupled with many defective electric wires, the cost of the insulation layer is relatively low, and the quality of the wires that do not even have a good insulation layer can be imagined, and the insulation layer does not require any technical skills. With living experience, as long as you follow the steps, you can choose high-quality wires.

Pulling, high-quality insulation, it is not easy to deform and crack when pulled hard.

Cut, you can cut a section and carefully observe the section of the insulating layer. If it is white and has no bubbles, and the filling is tight, it will pass.

Bending, take out a small piece of wire, and bend it arbitrarily. There is no breakage or white mark at the bend, and the wire body is smooth and tough.

Grinding, rubbing the insulation repeatedly, if the insulation is not damaged and the surface is bright, it indicates that the raw material is strong.

At high temperature, put the insulating layer in the sun, the insulating layer will not change color or dissolve, and has super stability. The molecular structure is stable at high temperature, and it is not easy to decompose. High-quality insulation can have various resistances.

No smoke, if the wire is ignited, there will be a lot of black smoke in the inferior insulation layer, but only a small amount of white mist in the high-quality insulation. If a fire occurs, the thick black smoke will prevent escape. The visible distance of high-quality insulation is up to 60 meters, which greatly improves the escape. probability.

Odorless, inferior insulation layer, pungent odor when you smell it carefully, and high-quality environmental protection insulation, even in the case of burning, there will be no irritating odor that will cause nose choking and prevent escape.

The quality of the power cable directly affects the operation safety of the line. Once the line cannot run safely and stably, the life and economic losses caused by its failure are unpredictable. Therefore, we electric workers must fundamentally prevent the occurrence of cable failures. Minimize cable accidents, start from the subtleties, and strive to achieve the goal of safe and stable power supply.